289 S. I. Latif, L. Shafai and C. Shafai, 2013, “An Engineered Concoctor for gain and Efficiency Imprivement of Miniaturized Microstrip Antennas”, IEEE Antennas and Propagation Magazine, vol. 55, Issue 2, pp. 77-90, April.
288. A. Rashidian, L. Shafai, and D.M. Klymyshyn, 2013, “Tall Microstrip Transmission Lines for Dielectric Resonator Antenna Applications”, accepted for publication, IET Microwaves, Antennas & Propagation, March.
287. Z. Allahgholi Pour and L. Shafai, 2013, “Investigation of Virtual Array Antennas with Adaptive Element Locations and Polarization Using Parabolic Reflector Antennas”, IEEE Transactions on Antennas and Propagation, Vol. 61, No. 2, pp. 688-699, February.
286. M. Qudrat-E-Maula and L. Shafai, 2012 “Low-Cost, Microstrip-Fed Printed Dipole for Prime Focus Reflector Feed”, IEEE Trans. on Antennas and Propagation, Vol. 60, No. 11, pp. 5428-5433, November.
285. A. Rashidian, L. Shafai and D. M. Klymyshyn, 2012, “Compact Wideband Multimode Dielectric Resonator Antennas Fed with Parallel Standing Strips”, IEEE Trans. on Antennas and Propagation, Vol. 60, No. 11, pp. 5021-5031, November.
284. O.A. Nova, J.C. Bohórquez, N.M. Peña, G.E. Bridges, L. Shafai and C. Shafai, 2012, “Design procedure of a filter-antenna module implemented in Substrate Integrated Waveguide technology”, accepted for publication, Springer Science & Business Media Analog Integrated Circuits and Signal Processing Journal, IEEE-LASCAS2011.
283. Z. Allahgholi Pour and L. Shafai, 2012, “A Ring Choke Excited Compact Dual-mode Circular Waveguide Feed for Offset Reflector Antennas”, IEEE Trans. on Antennas and Propagation, Vol. 60, No. 6, pp. 3011-3015, June.
282. Z. Allahgholi Pour and L. Shafai, 2012 “A Simplified Feed Model for Investigating the Cross Polarization Reduction in Circular- and Eliptical-Rim Offset Reflector Antennas”, IEEE Trans. on Antennas and Propagation, Vol. 60, No. 3, pp. 1261-1268, March.
281. A. Foroozesh and L. Shafai, 2012, “On the Characteristics of the Highly Directive Resonant Cavity Antenna Having Metal Strip Grating Superstrate”, IEEE Trans. on Antennas and Propagation, Vol. 60, No. 1, pp. 78-91, January.
280. M. Ostadrahimi, S. Noghanian and L. Shafai, 2012, “A Novel Antenna Design Technique Using Finite Element Method and Transmission Line Theory”, Microwave and Optical Technology Letters, Vol. 54, No. 1, pp. 126-133, January.
279. S.I. Latif and L. Shafai, 2012, “Circular polarization from dual-layer square-ring microstrip antennas”, IET Journal on Microwaves, Antennas and Propagation, Vol. 6, No. 1, pp. 1-9.
278. M. Ostadrahimi, P. Mojabi, S. Noghanian, J. LoVetri, and L. Shafai, 2011, “A Multiprobe-per-collector Modulated Scatterer Technique for Microwave Tomography”, IEEE Antennas and Wirelesss Propagation Letters, Vol. 10, pp. 1445 – 1448.
277. P. Mojabi, J. LoVetri and L. Shafai, 2011, “A Multiplicative Regularized Gauss-Newton Inversion for Shape and Location Reconstruction”, IEEE Trans. on Antennas and Propagation, Vol. 59, No. 12 pp. 4790-4802, December.
276. D. Isleifson, I. Jeffrey, L. Shafai, J. LoVetri and D.G. Barber, 2011, “An Efficient Scattered-Field Formulation for Objects in Layered Media using the FVTD Method”, IEEE Transactions on Antennas and Propagation, Vol. 59, No. 11, pp. 4162-4170, November.
275. S.I. Latif and L. Shafai, 2011, “Investigation on the EM-Coupled Stacked Square Ring Antennas with Ultra-Thin Spacing”, IEEE Trans. on Antennas and Propagation, Vol 59, No. 11, pp. 3978-3990, November.
274. A.M. Mehrabani and L. Shafai, 2011, “Effect of Air-Gap on Axial Ratio of Low Profile Spiral Antenna”, Microwave and Optical Technology Letters, Vol. 53, No. 10, pp. 2422-2423, October.
273. S.I. Latif and L. Shafai, 2011, “Pattern Equalization of Circular Patch Antennas using Different Substrate Permittivities and Ground Plane Sizes”, IEEE Trans. on Antennas and Propagation, Vol. 59, No. 10, pp. 3502-3511, October.
272. Z. Allahgholi Pour and L. Shafai 2011, “A Novel Impedance Matched Mode Generator for Excitation of the TE21 Mode in Compact Dual-mode Circular Waveguide Feeds", IEEE Antennas and Wireless Propagation Letters, Vol. 10, pp. 427-430.
271. O. A. Nova, J. C. Bohorquez, N. M. Pena, G. E. Bridges, L. Shafai, and C. Shafai, 2011, “Filter - Antenna Module Using Substrate Integrated Waveguide Cavities“, IEEE Antennas and Wireless Propagation Letters, Vol. 10, pp. 59-62.
270. A.M. Mehrabani and L. Shafai, 2011, “An Extremely Low-Profile Offset-Fed Curl Antenna Over an AMC Ground”, Microwave and Optical Technology Letters, Vol 53, No.5, pp. 1036-1041, May.
269. K. Kota and L. Shafai, 2011, “Gain and radiation pattern enhancement of balanced antipodal Vivaldi antenna”, IET Electronics Letters, Vol. 47, No. 5, pp. 303-304, March.
268. A. Foroozesh and L. Shafai, 2011, “Investigation into the Application of Artificial Magnetic Conductors to Bandwidth Broadening, Gain Enhancement and Beam Shaping of Low Profile and Conventional Monopole Antennas”, IEEE Trans. on Antennas and Propagation, Vol. 59, No. 1, pp. 4-20, January.
267. Z. Allahgholi Pour and L. Shafai, 2011, “Effect of Feed Phase Errors on the Crosspolarization of Offset Reflector Antennas”, Microwave and Optical Technology Letters, Vol. 53, No. 1, pp. 231-235, January.
266. S.I. Latif, L. Shafai and C. Shafai, 2011, “Gain and efficiency enhancement of compact and miniaturised microstrip antennas using multi-layered laminated conductors”, IET Journal on Microwaves, Antennas and Propagation, Vol. 5, No. 4, pp. 402-411, January.
265. A. Foroozesh and L. Shafai, 2010, “On the Analysis Methods and Reflection Phase Characteristics of an AMC/AEC Surface”, IEEE Antennas and Propagation Magazine, Vol. 52, No. 5, pp. 71-90.
264. A. Foroozesh and L. Shafai, 2010, “Investigation into the Effects of the Reflection Phase Characteristics of Highly-Reflective Superstrates on Resonant Cavity Antennas”, IEEE Trans. on Antennas and Propagation, Vol. 58, No. 10, pp. 3392-3396, October.
263. Z. Allahgholi Pour and L. Shafai, 2010, "Investigation of Asymmetric Phase Errors of an Optimized Dual-Mode Primary Feed on the Cross Polarization of Offset Reflector Antenna", IEEE Antenna and Wireless Propagation Letters, Vol. 9, pp. 872-875, September.
262. D. Isleifson, B. Hwang, D.G. Barber, R.K. Scharien and L. Shafai, 2010, “C-Band Polarimetric Backscattering Signatures of Newly Formed Sea Ice During Fall Freeze-up”, IEEE Transactions on Geoscience and Remote Sensing, Vol. 48, No. 8, pp. 3256-3267, August.
261. S.I. Latif and L. Shafai, 2010, “Polarization and Resonant Characteristics of Gap Loaded Microstrip Square Ring Antennas”, IET Journal on Microwaves, Antennas and Propagation, Vol. 4, No. 6, pp. 733-742, June.
260. C. Gilmore, P. Mojabi, A. Zakaria, M. Ostadrahimi, C. Kaye, S. Noghanian, L. Shafai, S. Pistorius and J. LoVetri, 2010, “A Wideband Microwave Tomography System with a Novel Frequency Selection Procedure”, IEEE Trans. on Biomedical Eng., Vol. 57, No. 4, pp. 894-904, April.
259. A. Foroozesh and L. Shafai, 2010, “Investigation into the Effects of the Patch-Type FSS Superstrate on the High-Gain Cavity Resonance Antenna Design”, IEEE Trans. on Antennas and Propagation, Vol. 58, No. 2, pp. 258-270, February.
258. M. Ng Mou Kehn, and L. Shafai, 2010, “Wideband Radiation Enhancement of Waveguide Arrays Operated as Feeds for Reflector Antennas Using Patch Array Cover”, Radio Science, Vol. 45, RS1006, doi:10.1029/2008RS003961, February.
257. M. Ostadrahimi, J. LoVetri, A. Zakaria, C. Kaye, S. Noghanian and L. Shafai, 2010, "Investigating a Double Layer Vivaldi Antenna Design for Fixed Array Field Measurement", International Journal of Ultra Wideband Communications and Systems, IJUWBCS Special Issue, Vol. 1, No. 4, pp. 282–290, Winter.
256. M. Ng Mou Kehn and L. Shafai, 2009, “Improved Matching of Waveguide Focal Plane Arrays using Patch Array Covers as Compared to Conventional Dielectric Sheets”, IEEE Trans. on Antennas and Propagation, Vol. 57, No. 10, Part 2, pp 3062-3076, October.
255. S.I. Latif and L. Shafai, 2009, “Polarization Characteristics of Multi-Band Loaded Microstrip Annular Ring Antennas”, IEEE Trans. on Antennas and Propagation, Vol. 57, No. 9, pp. 2788-2793, September.
254. R.J. Galley, M. Trachtenberg, A. Langlois, D.G. Barber and L. Shafai, 2009, “Observations of geophysical and dielectric properties and ground penetrating radar signatures for discrimination of snow, sea ice and freshwater ice thickness”, ELSEVIER Cold Regions Science and Technology, Vol. 57, No. 1, pp. 29-38, June.
253. M. Ng Mou Kehn and L. Shafai, 2009, “Proper interpretation of source excitations for resolving ostensible excessive power gains of metamaterial resonances”, Electronics Letters, Vol. 45, No. 12, pp. 599-601, June.
252. M. Ng Mou Kehn and L. Shafai, 2009, “Characterization of Dense Focal Plane Array Feeds for Parabolic Reflectors in Achieving Closely-Overlapping or Widely-Separated Multiple Beams”, Radio Science, Vol. 44, RS3014, doi:10.1029/2008RS003953, June.
251. M. Ng Mou Kehn, L. Shafai and S. Noghanian, 2009, “Permittivity Measurement of Disk and Annular Dielectric Samples using Coaxial Transmission-Line Fixtures – Part II: Experimentation and Accuracy Analyses”, Canadian Journal of Electrical & Computer Eng., Vol. 34, No. 1, pp. 31-41, Winter/Spring.
250. M. Ng Mou Kehn, L. Shafai and S. Noghanian, 2009, “Permittivity Measurement of Disk and Annular Dielectric Samples using Coaxial Transmission-Line Fixtures – Part I: Theory and Formulation”, Canadian Journal of Electrical & Computer Eng., Vol. 34, No. 1, pp. 21-29, Winter/Spring.
249. A. Foroozesh and L. Shafai, 2009, “Effects of Artificial Magnetic Conductors in the Design of Low-Profile High-Gain Planar Antennas With High-Permittivity Dielectric Superstrate”, IEEE Antennas & Wireless Prop. Letters, Vol. 8, pp. 10-13, March.
248. S.K. Sharma and L. Shafai, 2009, “Performance of a Novel Ψ-Shape Microstrip Patch Antenna With Wide-Bandwidth”, IEEE Antennas and Wireless Propagation Letters, Vol. 8, pp. 468-471.
247. D. Isleifson, A. Langlois, D. Barber and L. Shafai, 2009, “C-Band Scatterometer Measurements of Multiyear Sea Ice before Fall Freeze-up in the Canadian Arctic”, IEEE Trans. on Geoscience and Remote Sensing, Vol. 47, No. 1, pp. 1-11, January.
246. Z. Allahgholi Pour and L. Shafai, 2009, “Control of Phase Centre Location in Circular Microstrip Antennas Operating at TM11 and TM02 Modes” Microwave and Optical Technology Letters, Vol. 51, No. 1, pp. 166-169, January.
245. I. Hossain, S. Noghanian, L. Shafai and S. Pistorius, 2008, “Design and Performance Investigation of a Diamond-Shaped Compact Ultra-Wideband Antenna for Microwave Imaging” Microwave and Optical Technology Letters, Vol. 50, No. 12, pp. 3255-3259, December.
244. A. Foroozesh, L. Shafai and M. Ng Mou Kehn, 2008, “Application of Polarization and Angular Dependent Artificial Ground Planes in Compact Planar High-Gain Antenna Design”, Invited, Radio Science, Vol. 43, RS6S03, doi:10.1029/2007RS003795, November.
243. S-S. Oh and L. Shafai, 2008, “Investigation into Polarization of Unloaded and Loaded Microstrip Square-Ring Antennas”, IEEE Trans. on Antennas and Propagation, Vol. 56, No. 10, pp. 3129-3135, October.
242. L. Shafai and Z. Allahgholi Pour, 2008, “Displacement of Phase Centre Location in Circular Microstrip Antennas”, Microwave and Optical Technology Letters, Vol. 50, No. 10, pp. 2531-2535, October.
241. A. Foroozesh, M. Ng Mou Kehn and L. Shafai, 2008, “Application of Artificial Ground Planes in Dual-Band Orthogonally-polarized Low-Profile High-Gain Planar Antenna Design”, Progress in Electromagnetic Research, PIER 84, pp. 407-436.
240. A. Foroozesh and L. Shafai, 2008, “Application of combined electric- and magnetic-conductor ground planes for antenna performance enhancement”, Canadian Journal of Electrical & Computer Eng., Vol. 33, No. 2, pp. 87-98, Spring.
239. A. Foroozesh and L. Shafai, 2008, “Wave Propagation in 1D EBGs: Periodic Multilayer Films Consisting of Two Different Materials”, IEEE Antennas and Propagation Magazine, Vol. 50, No. 2, pp. 175-182, April.
238. C. Shafai, S.K. Sharma, J. Yip, Leili Shafai, and L. Shafai, 2008, “Microstrip Delay Line Phase Shifter by Actuating Integrated Ground Plane Membranes”, IET Microwaves, Antennas & Propagation, Vol. 2, pp. 163-170, March.
237. M. Fallah-Rad and L. Shafai, 2007, “Gain Enhancement in Embedded Microstrip Antennas”, Microwave and Optical Technology Letters, Vol. 50, No. 2, pp. 269-271, December.
236. S.I. Latif and L. Shafai, 2007, “Hybrid perturbation scheme for wide angle circular polarization of stacked square-ring microstrip antennas”, IET Electronics Letters, Vol. 43, No. 20, pp. 1065-1066, September.
235. F. Kaymaram and L. Shafai, 2007, “Enhancement of microstrip antenna directivity using double-superstrate configurations”, Canadian Journal of Electrical & Computer Engineering, Vol. 32, No.2, pp. 77-82, Spring.
234. S-S. Oh and L. Shafai, 2007, “Compensated circuit with characteristics of lossless double negative materials and its application to array antennas”, IET Microwaves, Antennas and Propagation, Vol. 1, No. 1, pp. 29-38, February.
233. D. Qu, L. Shafai and A. Foroozesh, 2006, “Improving Microstrip Patch Antenna Performance Using EBG Substrates”, IET Microwaves, Antennas and Propagation, Vol. 153, No. 6, pp. 558-563, December.
232. L. Shafai, S.K. Sharma, B. Balaji, A. Damini and G. Haslam, 2006, “Multiple Phase Center Performance of Reflector Antennas Using a Dual Mode Horn”, IEEE Trans. on Antennas and Propagation, Vol. 54, No. 11, pp 3407-3417, November.
231. S.I. Latif and L. Shafai, 2006, “Investigation on Probe-Fed Open-Ring Microstrip Antenna for Minaturization”, Microwave and Optical Technology Letters, Vol. 48, No. 11, pp. 2175-2179, November.
230. S-S. Oh and L. Shafai, 2006, “Beam-squint minimization in series-fed slotted waveguide array antennas using double negative materials”, Microwave and Optical Technology Letters, Vol. 48, No. 9, pp. 1789-1792, September.
229. L. Shafai, S.K. Sharma, Leili Shafai, M. Daneshmand and P. Mousavi, 2006, “Phase Shift Bandwidth and Scan Range in Microstrip Arrays by the Element Frequency Tuning”, IEEE Trans. on Antennas and Propagation, Vol. 54, No. 5, pp. 1467-1473, May.
228. S-S. Oh and L. Shafai, 2006, “Antenna Miniaturization Using Open-Ring Microstrip Geometries”, IEE Electronics Letters, Vol. 42, No. 9, pp. 500-502, March.
227. B. Ghosh, N. Simons, L. Shafai, A. Ittipiboon, and A. Petosa, 2006, “Analysis of NRD based components and transitions using the TLM based modal extraction approach", Canadian Journal of Electrical and Computer Engineering, Vol. 31, No. 1, pp. 15-24, Winter.
226. S-S. Oh and L. Shafai, 2006, “Artificial Magnetic Conductor Using Split Ring Resonators and Its Application to Antennas” Microwave and Optical Technology Letters, Vol. 48, No. 2, pp. 329-334, February.
225. S.K. Sharma and L. Shafai, 2005, “Beam Focussing Properties of Circular Monopole Array Antenna on a Finite Ground Plane”, IEEE Trans. on Antennas and Propagation, Vol. 53, No. 10, pp. 3406-3409, October.
224. K.Y. Sze and L. Shafai, 2005, “Numerical Analysis of Offset-Line-Source-Fed Microstrip Reflectarrays”, Canadian Journal of Electrical and Computer Engineering, Vol. 30, No. 3, pp. 163-170, Summer.
223. M. Fallah-Rad and L. Shafai, 2005, “Gain Enhancement in Linear and Circularly Polarized Microstrip Patch Antennas Using Shorted Metallic Patches”, IEE Proceedings on Microwaves, Antennas & Propagation, Vol. 152, No. 3, pp. 138-148, June.
222. S.I. Latif, L. Shafai and S.K. Sharma, 2005, “Bandwidth Enhancement and Size Reduction of Microstrip Slot Antennas”, IEEE Trans. On Antennas and Propagation, Vol. 53, No. 3, pp. 994-1003, March.
221. Gh.Z. Rafi and L. Shafai, 2004, “Broadband Microstrip Patch Antenna with V-Slot”, IEE Proceedings on Microwaves, Antennas & Propagation, Vol. 151, No. 5, pp. 435-440, October.
220. R. Al-Dahleh, C. Shafai, and L. Shafai, 2004, “Frequency-Agile Microstrip Patch Antenna Using a Reconfigurable MEMS Ground Plane”, Microwave and Optical Letters, Vol. 43, No. 1, pp. 64-67, October.
219. Gh.Z. Rafi and L. Shafai, 2004, “Low-Cross-Polarized Wideband V-Slot Microstrip Antenna”, Microwave and Optical Technology Letters, Vol. 43, No. 1, pp. 44-47, October.
218. Gh.Z. Rafai and L. Shafai, 2004, “Wideband V-slotted Diamond Shape Microstrip Patch Antenna”, IEE Electronics Letters, Vol. 40, No. 19, pp. 1166-1167, September.
217. S.K. Sharma and L. Shafai, 2004, “Investigations on Miniaturized Endfire Vertically Polarized Quasi-Fractal Log-Periodic Zigzag Antenna”, IEEE Trans. on Antennas and Propagation, Vol. 52, No. 8, pp. 1957-1962, August.
216. A. Damini, B. Balaji, L. Shafai and G. Haslam, 2004, “Novel Multiple Phase Centre Reflector Antenna for GMTC Radar”, IEE Proc. on Microwaves, Antennas & Propagation, Vol. 151, No. 2, pp. 199-205, June.
215. S.K. Sharma, L. Shafai and N. Jacob, 2004, “Investigation of Wide Band Microstrip Slot Antenna”, IEEE Trans. on Antennas and Propagation, Vol. 52, No. 3, March.
214. C. Shafai, S.K. Sharma, L. Shafai and D.D. Chrusch, 2004, “Microstrip Phase Shifter Using Ground-Plane Reconfiguration”, IEEE Trans. on Microwave Theory and Techniques, Vol. 52, No. 1, pp. 144-153, January.
213. D.D. Chrusch, C. Shafai, L. Shafai and S.K. Sharma, 2003, “Corrugated copper membranes for use in reconfigurable ground plane antenna”, Canadian Journal of Electrical & Computer Engineering, Vol. 28. No. 3/4, pp. 99-104, July/October.
212. A.A. Kishk and L. Shafai, 2003, “Small Reflector Antenna With Low Side Lobes”, IEEE Trans. on Antennas and Propagation, Vol. 51, No. 10, pp. 2907-2912, October.
211. P. Mousavi, L. Shafai, B. Veidt, M. Daneshmand and P. Dewdney, 2003, “Characteristics and Design of the LAR Offset System with Feed-Reflector”, IEEE Trans. on Antennas & Propagation, Vol. 51, No. 7, pp. 1462-1475, July.
210. M. Fallah-Rad and L. Shafai, 2003, “Mode Control in Microstrip Patch Antennas Using Ground-Plane Perforations”, Microwave and Optical Technology Letters, Vol. 37, No. 2, pp. 103-107, April.
209. P. Mousavi, L. Shafai, B. Veidt and M. Daneshmand, 2003, “Gaussian beam analysis of large adaptive reflector antenna (LAR) using feed-reflector”, IEE Proceedings – Microwaves, Antennas and Propagation, Vol. 150, No. 1, pp. 43-48, February.
208. S. Noghanian and L. Shafai, 2003, “Analysis of dielectric-loaded annular slot array antenna”, Canadian Journal of Electrical & Computer Eng., CJECE, Vol. 28, No. 1, pp. 11-18, January.
207. L. Shafai and M. Daneshmand, 2002, “Array Beam Scanning by Element Frequency Tuning”, Microwave and Optical Technology Letters, Vol. 35, No. 6, December.
206. B. Ghosh, N.R.S. Simons, L. Shafai, A. Ittipiboon and A. Petosa, 2002, “TLM Based Modal Extraction Approach for the Investigation of Discontinuities in the Rectangular Waveguide and the NRD”, IEEE Trans. Microwave Theory & Techniques, MTT, Vol. 50, No. 10, pp. 2294-2304, October.
205. F. Tavakkol-Hamedani, A. Tavakoli and L. Shafai, 2002, “Analysis of Finite-Microstrip Structures Using Surface Equivalence Principle and Multiple-Network Theory (SEMN)”, IEEE Trans. on Antennas and Propagation, Vol. 50, No. 8, pp. 1128-1137, August.
204. K.Y. Sze and L. Shafai, 2002, “Phase properties of single layer patch arrays with applications to line source fed microstrip reflectarrays”, IEE Proceedings – Microwaves, Antennas & Propagation, Vol. 149, No. 1, pp. 64-70, February.
203. R. Bhalla and L. Shafai, 2002, “Resonance Behavior of Single U-Slot Microstrip Patch Antenna”, Microwave and Optical Technology Letters, Vol. 32, No. 5, pp. 333-335, March.
202. S. Noghanian and L. Shafai, 2001, “Analysis of conducting ring and double layer dielectric loaded annular slot array antennas”, IEE Proceedings - Microwaves, Antennas & Propagation, Vol. 148, No. 5, pp. 327-333, October.
201. P. Mousavi, L. Shafai, B. Veidt and P. Dewdney, 2001, “Feed-Reflector Design for Large Adaptive Reflector Antenna (LAR)”, IEEE Transactions on Antennas & Propagation, Vol. 49, No. 8, pp. 1142-1154, August.
200. K.Y. Sze and L. Shafai, 2001, “Hat-shaped patches for line-source-fed microstrip reflectarray”, IEE Electronics Letters, Vol. 37, No. 15, pp. 937-939, July.
199. J.E. Roy and L. Shafai, 2001, “Generalization of the Ludwig-3 Definition for Linear Copolarization and Cross Polarization”, IEEE Trans. On Antennas & Prop., Vol. 49, No. 6, June.
198. D.P. Gray and L. Shafai, 2001, “Optimisation of a large diameter short backfire antenna by cavity juncture curvature”, IEE Electronics Letters, Vol. 37, No. 11, pp. 675-676, May.
197. D.P. Gray and L. Shafai, 2001, “Numerical study of waveguide end wall slot feed microstrip arrays”, IEE Electronics Letters, Vol. 37, No. 11, pp. 673-675, May.
196. S. Noghanian and L. Shafai, 2001 “Gain enhancement of annular slot antennas”, IEE Proceedings - Microwaves, Antennas & Propagation, Vol. 148, No. 2, pp.109-113, April.
195. K.Y. Sze and L. Shafai, 2001, “Formulation for reflection coefficient phase of infinite periodic array of microstrip patches”, IEE Electronics Letters, Vol. 37, No. 3, p 142, February.
194. Q. Ye and L. Shafai, 2000, “Investigation of Projection Iterative Method in Solving MOM Matrix Equations in Electromagnetic Scattering”, IEE Proceedings - Microwave, Antennas & Propagation, Vol. 147, No. 6, pp. 445-450, December.
193. L. Shafai, 2000, Invited, “Some Array Applications of the Curl Antenna”, Electromagnetics, Vol. 20, No. 4, pp. 271-293, July-August.
192. M. Clénet and L. Shafai, 2000, “Characteristics of a Conical Horn Loaded with Internal Metallic Objects”, Canadian Journal of Electrical and Computer Engineering, Vol. 25, No. 2, pp. 51-57, April.
191. M. Clénet and L. Shafai, 2000, “Investigations on directivity improvement of wide flare angle conical horns using inserted metallic discs”, IEE Proceedings - Microwaves, Antennas and Propagation, Vol. 147, No. 2, pp. 100-105, April.
190. W. Chamma, N. Gupta and L. Shafai, 2000, “Dispersion Characteristics of Grooved Microstrip Line (GMSL)”, IEEE Trans. on Microwave Theory and Techniques, Vol. 48, No. 4, pp. 611-615, April.
189. L. Shafai, W. Chamma, M. Barakat, P. Strickland and G. Seguin, 2000, “Dual-Band Dual-Polarized Perforated Microstrip Antennas for SAR Applications,” IEEE Transactions on Antennas & Propagation, Vol. 48, No. 1, pp. 58-66, January.
Books:
17. S. Sharma, L. Shafai and S.K. Rao, 2013, “Handbook of Reflector Antennas and Feed Systems”, Vol., 1, Ed., Artech House, Boston.
16. L. Shafai, S. Sharma and S.K. Rao, 2013, “Handbook of Reflector Antennas and Feed Systems”, Vol., 2, Ed., Artech House, Boston.
15. S.K. Rao, L. Shafai and S. Sharma, 2013, “Handbook of Reflector Antennas and Feed Systems”, Vol., 3, Ed., Artech House, Boston.
14. L. Shafai, Z.A. Pour and S. Sharma, 2013, “Generalized Asymmetric Reflector Antenna Feeds for Polarization Control and Adaptive Virtual Array Design”, chapter 8 in “Handbook of Reflector Antennas and Feed systems”, Vol. 2, Artech House, Boston.
13. L. Shafai, Z.A. Pour and S. Latif, 2013, “Electrically Small Feeds”, chapter 3 in “Handbook of Reflector Antennas and Feed systems”, Vol. 2, Artech House, Boston.
12. L. Shafai and S. Sharma, 2013, “Introduction”, chapter 1 in “Handbook of Reflector Antennas and Feed systems”, Vol. 2, Artech House, Boston.
11. S. Sharma, Z.A. Pour and L. Shafai, 2013, “Reflector Antennas with Adaptive Apertures”, Chapter 4 in “Handbook of Reflector Antennas and Feed systems”, Vol. 1, Artech House, Boston.
10. S. Sharma and L. Shafai, 2009, Invited, “Printed Antennas for Wireless Communications”, Chapter 10, John Wiley, New York.
9. A. Mohamed and L. Shafai, 2009, Invited, "Investigation on the Phase Centre of Ultra Wideband Monopole Antennas with Band-Stop Functions," Ultra-Wideband, Short-Pulse Electromagnetics 9, (UWB SP 9) Book, Springer 2010, pp. 213-220.
8. L. Shafai and S. Noghanian, 2008, Invited, “Classical Wideband Antennas”, chapter in “Modern Antenna Handbook”, John Wiley, New York.
7. L. Shafai, 2007, Invited, “Broadband Microstrip Antennas”, Chapter 16, “Antenna Engineering Handbook”, McGraw-Hill, New York.
6. L. Shafai, 2003, “Dielectric Loaded Antennas”, revised 2nd Edition, chapter in Encyclopedia of Electrical and Electronics Engineering, John Wiley, New York.
5. L. Shafai, 1998, Invited, “Dielectric Loaded Antennas”, chapter in Encyclopedia of Electrical and Electronics Engineering, John Wiley, New York.
4. L. Shafai with P.J.B. Clarricoats, A.D. Olver and A.A. Kishk, 1994, “Microwave Horn Antennas and Feeds”, IEE Publications, London.
3. A. Bhattacharyya, L. Shafai and R. Garg, 1991, “Microstrip Antenna, A Generalized Transmission line”, Vol. 4, Chapter 2. Progress in Electromagnetic Research, Elsevier Science Publishers.
2. L. Shafai and A.A. Kishk, 1989, Invited, “Numerical design and evaluation of small primary feeds”, Section 4.4, pp. 315-334, in Recent Advances in Antenna Theory and Design, Microwave Exhibitors and Publishers Ltd., London.
1. L. Shafai and A.A. Kishk, 1989, Invited, “Analysis of circular microstrip antennas”, Chapter 2, Handbook of Microstrip Antennas, Peter Peregrinns, London.
Patents:
13. L. Shafai with S.K. Sharma, B. Balaji, A. Damini and G. Haslam, 2007, “Multiple phase centre feedhorn for reflector antenna”, US Patent 7180459, February.
12. L. Shafai and C. Shafai, 2006, “Multiple Frequency Antenna”, US Patent 7050004, May.
11. L. Shafai, 1999, “Microstrip Line Fed Microstrip End-fire Antenna”, US Patent 5896108, April.
10. L. Shafai, 1993, “Directional Switched Beam Antenna”, US Patent 19920429.
9. L. Shafai, 1992, “Scanning Antenna” Canadian Patent 1,305,249, July.
8. L. Shafai and P. Bhartia, 1992, “High Performance Dipole Feed for Reflector Antennas”, Canadian Patent 1302559, June.
7. L. Shafai, 1990, “Scanning Antenna”, U.S. Patent 4947178, August.
6. L. Shafai, A. A. Kishk, E. Bridges and A. Ittipiboon, 1987, “Paraboloid Reflector Antenna Feed Having a Flange with Tapered Corrugations”, Canadian Patent 1224563, July.
5. L. Shafai, A.A. Kishk, E. Bridges, and A. Ittipiboon, 1986, “Corrugated Feeds with Profiled Corrugations”, US Patent 4622559, November.
4. L. Shafai, A. Ittipiboon & E. Bridges, 1986, “A Dielectric Rod Feed for Reflector Antennas”, Canadia Patent, 1201199, February.
3. A. Ittipiboon, L. Shafai & E. Bridges, 1986, “Waveguide with Dielectric Loaded Flange Antenna Feed”, Canadian Patent, 1201802, March.
2 A. Ittipiboon, L. Shafai & E. Bridges, 1985, “Waveguide with Dielectric Coated Flange Antenna Feed”, US Patent 4,516,129, March.
1. B. Azarbar and L. Shafai, 1982, “Array of Annular Slots excited by Radial Waveguide Modes”, Canadian Patent 1136267, November.